David Gibson dec4ad86c2 hugepage: fix broken check for offset alignment in hugepage mappings ... For hugepage mappings, the file offset, like the address and size, needs to be aligned to the size of a hugepage. In commit 68589bc353, the check for this was moved into prepare_hugepage_range() along with the address and size checks. But since BenH's rework of the get_unmapped_area() paths leading up to commit 4b1d89290b, prepare_hugepage_range() is only called for MAP_FIXED mappings, not for other mappings. This means we're no longer ever checking for an aligned offset - I've confirmed that mmap() will (apparently) succeed with a misaligned offset on both powerpc and i386 at least. This patch restores the check, removing it from prepare_hugepage_range() and putting it back into hugetlbfs_file_mmap(). I'm putting it there, rather than in the get_unmapped_area() path so it only needs to go in one place, than separately in the half-dozen or so arch-specific implementations of hugetlb_get_unmapped_area(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Cc: Adam Litke <agl@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-08-31 01:42:23 -07:00
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configs	[IA64] Update arch/ia64/configs/* s/SLAB/SLUB/	2007-08-13 14:54:34 -07:00
dig	[PATCH] tty: Remove include of screen_info.h from tty.h	2006-07-10 13:24:16 -07:00
hp	[IA64] make unwinder stop at last frame of the bootloader	2007-08-13 13:26:02 -07:00
ia32	[IA64] Remove a few duplicate includes	2007-07-30 16:28:59 -07:00
kernel	[IA64] Enable early console for Ski simulator	2007-08-17 13:44:15 -07:00
lib	missing exports of csum_...	2007-07-17 11:01:07 -07:00
mm	hugepage: fix broken check for offset alignment in hugepage mappings	2007-08-31 01:42:23 -07:00
oprofile	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
pci	[IA64] Nail two more simple section mismatch errors	2007-07-25 13:08:41 -07:00
scripts
sn	[IA64] SGI Altix : fix a force_interrupt bug on altix	2007-08-13 15:24:35 -07:00
defconfig	[IA64] Update arch/ia64/configs/* s/SLAB/SLUB/	2007-08-13 14:54:34 -07:00
install.sh
Kconfig	[IA64] Include Kconfig.preempt	2007-08-13 13:20:38 -07:00
Kconfig.debug
Makefile	[IA64] add vmlinuz target	2006-06-21 14:31:07 -07:00
module.lds